Pump attachment for gaseous liquids



(No Model.)

T. H. BUTLER.

PUMP ATTAGHMENT FOR GASEOUS LIQUIDS.

No. 371,488. Patented Oct. 11,1887.

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THOMAS H. BUTLER, OF HARRISBURG, PENNSYLVANIA.

PUMP ATTACHMENT FOR GASEOUS LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 371,488, dated October 11, 1887.

Application filed June 11, 1887. Serial Nail-11,001.

To all whom it may concern.-

Be it known that I, THoMAs H. BUTLER, a citizen of the United States, residing at Harrisburg, in the county ofDauphin and State of Pennsylvania, have invented certain new and useful Improvements in Pump Attachments for Gaseous Liquids; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to pumps for gaseous liquids, and more especially to those used for pumping aqua-ammonia into the retort or gasgenerator of an ice-machine.

This invention consists in the novel combination of the parts,hereinafter fully described and claimed, whereby the gaschamber may be relieved from accumulated gas.

The figure in the drawing shows a side view of a pump provided with attachments according to this invention, the strainer-casing being shown partly in section.

A is the pump-barrel, and B is the suctionand delivery valve chamber.

0 is the suction-pipe, and D is the deliverypipe.

E is the pump-chamber, frequently called an air-vessel, but in pumping a gaseous liquid which is free from air this chamber will be filled with gas instead of air; but otherwise it will operate exactly the same as an ordinary air-vessel.

In pumping agaseous liquid--such as aquaammonia-there is a tendency for the gas to separate from the liquid in passing through the pump, on account of a slight decrease in pressure and rise in the temperature of the liquid. When the pump-chamber Ebecomes full ofgas, and will no longer relieve the pumpbarrel of any more gas which forms in it, the pump will not work properly. To overcome this difficulty the pipe F is provided, connecting the top of the pump-chamber E with the suction-pipe O. A regulating-valve, f, is applied to the pipe F, so that the outflow of gas from the pumpchamber can be stopped altogether, or a greater or less volume allowed to pass through it.

G is an inclosing-casing provided with a perforated strainer, H, inside it. This casing is ins trted between the sections of the suction- No modehi pipe, so that the liquid passes through the strainer and thclower part ofit,and the pipe F is fastened into its coverg above the strainer. The strainer is placed within the casing, so as to be easily removable when the cover is taken off for the purpose of cleaning out any accumulations of dirt which may lodge there. The strainer also serves the purpose of bringing the gas into intimate contact with the cold liquid passing through the casing G, so that it may be absorbed by the cold liquid before it passes into the pump-barrel.

The operating parts of the pump do not differ from those commonly in use for water.

Vhat I claim is 1. In combination with'a pump for gaseous liquids, provided with a pump-chamber, a pipe connecting the upper part of the said chamber with the suction-pipe, whereby a portion of the gas accumulating in the chamber may be absorbed by the liquid in the suction-pipe, and a mixer for bringing the gas passing through the pipeinto intimate contact with the liquid in the suction-pipe.

2. Thecombination,withapnmp forgascous liquids, provided with a pump-chamber, of a pipe connecting the upper part of the said chamber with a suction-pipe, whereby a portion of the gas accumulating in the chamber may be absorbed by theliquid in the suctionpipe, a mixer for bringing the gas passing through the pipe into intimate contact with the liquid in the suction-pipe, and a regulating valve for controlling the flow of gas through the said pipe.

3. The combination, with a pump for gaseous liquids, provided with a pump-chamber, of a pipe connecting the upper part of the said chamber with the suction-pipe, whereby a portion of the gas accumulating in the chamber may be absorbed by the liquid in the suction-pipe, and a perforated strainer provided with aninclosing-casingconnecting thegas and suction pipes, so that impurities may be removed from the liquid and the gas be brought into intimate contact with the liquid.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS H. BUTLER.

Witnesses:

J AMES I. CHAMBERLIN, R. S. CARE. 

